Repeated bulb failure can result from the wrong heat rating, loose socket, vibration, grease contamination or voltage problems. Compare the bulb's rating with the oven manual and use only an appliance bulb rated for oven temperatures. With the oven off, cool and disconnected from power, look at the socket contacts for corrosion or scorching.
What this covers
- Ranges & ovens · lighting
What it does not cover
Differential
Likely causes of “Oven light bulb keeps burning out”, and how to tell them apart
- 1
The wrong bulb type or wattage is being used
What separates it The bulb fails within days or weeks and is a general-purpose household bulb, or a higher wattage than the manual specifies.
How to confirm Compare the bulb's rating with the oven manual and use only an appliance bulb rated for oven temperatures.
- 2
A loose or corroded socket is breaking contact
What separates it The bulb flickers, or sometimes works when the bulb is wiggled, and the socket shows dark or green marks.
How to confirm With the oven off, cool and disconnected from power, look at the socket contacts for corrosion or scorching.
- 3
Vibration from a slammed door or a resonating fan is breaking the filament
What separates it The bulb fails at the filament, often on ovens that are shut hard or that shake when the fan runs.
How to confirm Check whether the door slams closed and whether a fan or loose rack rattles.
- 4
A supply voltage that runs high is shortening the life
What separates it Several different bulbs fail quickly, and other bulbs in the house also fail early.
How to confirm Have a qualified person measure the supply voltage if other bulbs in the house also fail early.
Before you touch a setting
Record this first — changing settings destroys the evidence
- The bulb type, base and wattage printed on the old bulb and listed in the manual.
- How many days each bulb lasted, and whether the light was on during self-clean.
- Whether the light ever flickers or only fails outright.
Try in this order
0 of 4 completedObserve before changing anything
ReversibleConfirm the bulb type, wattage and appliance rating from the exact manual.
Isolate the failing boundary
ReversibleWith power disconnected and the oven cool, inspect accessible socket damage and install the specified appliance bulb without overtightening.
Apply the narrow correction
ReversibleTest the door switch and light control after restoring power.
Verify the result and stop at the boundary
ReversibleService is needed for a damaged socket, arcing or repeat failure with the correct bulb.
Stop boundary
When this stops being a self-service repair
- !Service is appropriate for a damaged or scorched socket, arcing, or repeat failures with the correct bulb.
- !Change the bulb only with the oven cool and power off, and never use a bulb rated below oven temperature.
Evidence ledger
Sources behind this answer
Exact questions
Common questions
Can I use a normal household bulb in an oven?+
No. Oven lamps are rated for the cavity temperature and use a specific base and glass. Use the specified appliance bulb for your model.
Which bulb should I use?+
A high-temperature appliance bulb of the correct type and wattage.
Could the socket be loose?+
Yes. A loose socket or vibration can shorten life.
Can grease damage it?+
Grease on the bulb can cause hot spots.